
Unfortunately, you cannot directly connect your iPhone to the Topping DX3 Pro Plus LDAC Headphone Amplifier using a standard USB cable for music playback. The DX3 Pro Plus is not designed to accept a direct USB connection from iPhones. To enable connectivity, you'll need a suitable USB adapter, such as the Apple USB Camera Adapter. This adapter allows you to connect USB devices to your iPhone's Lightning port. After acquiring the adapter, you can connect your iPhone to the Topping DX3 Pro Plus using a USB cable. This setup will then allow you to enjoy your music library played through the DX3 Pro Plus amplifier.


